I have this camera for a few days and cats do not come to deposit their needs in the protected area. I set the background sensitivity and frequency 5. The detector is a motion detector, not a presence detector. Once the motion detected the device works 15 to 20 seconds then stops. To the person complaining dacouphènes, I am very surprised. Indeed it would take to undergo ultrasound, have ears "brand new and particularly sensitive," but mostly remain in the beam at 1m or 2 and keep moving because the unit stops if there is no movement. In short this device seems perfect for the price.
Two months later ... so effective that I just bought a second! One in front and one behind the house. I hope to not walk in the defecation of the neighborhood cats.
